Catholicism http://id.loc.gov/authorities/subjects/sh85021043 http://purl.bioontology.org/ontology/MESH/D002410 https://en.wikipedia.org/wiki/Category:Catholicism BX800-BX4795 Catholic Church Catholic religion Roman Catholic Roman Catholic Church Roman Catholicism The largest Christian church, with approximately 1.3 billion baptised Catholics worldwide as of 2017. The church is headed by the Bishop of Rome, known as the pope. Its central administration is the Holy See. Western Christianity Catholic Encyclopedia of Lesbian Histories and Cultures LGBTQ America Today: An Encyclopedia Encyclopedia of Sex and Gender